Files
ds-chat/backend/app/routers/auth.py
T
ksmith 8ca3e2e23d Add user profile management: display name + avatar upload (Gitea issue #12)
Users can set a display name (shown instead of username in the message
list, room member list, TopBar, and admin Users tab) and upload a real
avatar, replacing the generated color-initial avatars everywhere a user
appears. Avatars are square-cropped and downscaled to 512px, reusing
app/storage.py's upload primitives from image uploads with a new square
option.

Two deliberate divergences from message-image handling, documented in
backend/README.md: the previous avatar file is deleted on replace/remove
(safe since it's strictly one file per user), and avatar serving is not
room-gated and uses a short cache (identity-addressed and mutable, unlike
a message image's permanent content-addressed URL).

Frontend: new ProfileModal reachable from the TopBar account menu;
AuthContext gains updateUser() so a profile change reflects instantly
everywhere without a refetch.
2026-08-14 16:59:56 -06:00

123 lines
3.7 KiB
Python

from fastapi import APIRouter, Depends, File, HTTPException, Request, Response, UploadFile
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.dependencies import get_current_user
from app.models import User
from app.schemas.auth import LoginRequest
from app.schemas.user import ProfileUpdate, UserRead
from app.services.auth_service import (
AccountDeactivatedError,
InvalidCredentialsError,
authenticate_user,
)
from app.storage import (
ALLOWED_IMAGE_CONTENT_TYPES,
ImageTooLargeError,
InvalidImageError,
delete_image,
process_image,
read_capped,
save_image,
)
AVATAR_MAX_DIMENSION = 512
# No POST /register here: this is an invite-only site. Accounts are created
# by an operator via `python -m app.cli create-user` (see app/cli.py), not
# through a public endpoint.
router = APIRouter(prefix="/api/auth", tags=["auth"])
@router.post("/login", response_model=UserRead)
async def login(
request: Request, data: LoginRequest, db: AsyncSession = Depends(get_db)
) -> User:
try:
user = await authenticate_user(
db, data.username_or_email, data.password
)
except InvalidCredentialsError:
raise HTTPException(status_code=401, detail="Invalid username/email or password")
except AccountDeactivatedError:
raise HTTPException(status_code=401, detail="Account is deactivated")
request.session["user_id"] = str(user.id)
return user
@router.post("/logout", status_code=204)
async def logout(request: Request) -> Response:
request.session.clear()
return Response(status_code=204)
@router.get("/me", response_model=UserRead)
async def me(current_user: User = Depends(get_current_user)) -> User:
return current_user
@router.patch("/me", response_model=UserRead)
async def update_profile(
data: ProfileUpdate,
current_user: User = Depends(get_current_user),
db: AsyncSession = Depends(get_db),
) -> User:
display_name = data.display_name.strip() if data.display_name else None
current_user.display_name = display_name or None
await db.commit()
await db.refresh(current_user)
return current_user
@router.post("/me/avatar", response_model=UserRead)
async def upload_avatar(
file: UploadFile = File(...),
current_user: User = Depends(get_current_user),
db: AsyncSession = Depends(get_db),
) -> User:
if file.content_type not in ALLOWED_IMAGE_CONTENT_TYPES:
raise HTTPException(status_code=400, detail="Unsupported image type")
try:
data = await read_capped(file)
except ImageTooLargeError:
raise HTTPException(status_code=413, detail="Image exceeds 8 MB limit")
try:
data, ext = process_image(
data, file.content_type, square=True, max_dimension=AVATAR_MAX_DIMENSION
)
except InvalidImageError:
raise HTTPException(status_code=400, detail="File is not a valid image")
previous_filename = current_user.avatar_filename
storage_filename = save_image(data, ext)
current_user.avatar_filename = storage_filename
current_user.avatar_content_type = file.content_type
await db.commit()
await db.refresh(current_user)
if previous_filename:
delete_image(previous_filename)
return current_user
@router.delete("/me/avatar", response_model=UserRead)
async def remove_avatar(
current_user: User = Depends(get_current_user),
db: AsyncSession = Depends(get_db),
) -> User:
previous_filename = current_user.avatar_filename
current_user.avatar_filename = None
current_user.avatar_content_type = None
await db.commit()
await db.refresh(current_user)
if previous_filename:
delete_image(previous_filename)
return current_user